1#! /bin/sh 2# depcomp - compile a program generating dependencies as side-effects 3 4scriptversion=2005-07-09.11 5 6# Copyright (C) 1999, 2000, 2003, 2004, 2005 Free Software Foundation, Inc. 7 8# This program is free software; you can redistribute it and/or modify 9# it under the terms of the GNU General Public License as published by 10# the Free Software Foundation; either version 2, or (at your option) 11# any later version. 12 13# This program is distributed in the hope that it will be useful, 14# but WITHOUT ANY WARRANTY; without even the implied warranty of 15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16# GNU General Public License for more details. 17 18# You should have received a copy of the GNU General Public License 19# along with this program; if not, write to the Free Software 20# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 21# 02110-1301, USA. 22 23# As a special exception to the GNU General Public License, if you 24# distribute this file as part of a program that contains a 25# configuration script generated by Autoconf, you may include it under 26# the same distribution terms that you use for the rest of that program. 27 28# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>. 29 30case $1 in 31 '') 32 echo "$0: No command. Try \`$0 --help' for more information." 1>&2 33 exit 1; 34 ;; 35 -h | --h*) 36 cat <<\EOF 37Usage: depcomp [--help] [--version] PROGRAM [ARGS] 38 39Run PROGRAMS ARGS to compile a file, generating dependencies 40as side-effects. 41 42Environment variables: 43 depmode Dependency tracking mode. 44 source Source file read by `PROGRAMS ARGS'. 45 object Object file output by `PROGRAMS ARGS'. 46 DEPDIR directory where to store dependencies. 47 depfile Dependency file to output. 48 tmpdepfile Temporary file to use when outputing dependencies. 49 libtool Whether libtool is used (yes/no). 50 51Report bugs to <bug-automake@gnu.org>. 52EOF 53 exit $? 54 ;; 55 -v | --v*) 56 echo "depcomp $scriptversion" 57 exit $? 58 ;; 59esac 60 61if test -z "$depmode" || test -z "$source" || test -z "$object"; then 62 echo "depcomp: Variables source, object and depmode must be set" 1>&2 63 exit 1 64fi 65 66# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. 67depfile=${depfile-`echo "$object" | 68 sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} 69tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} 70 71rm -f "$tmpdepfile" 72 73# Some modes work just like other modes, but use different flags. We 74# parameterize here, but still list the modes in the big case below, 75# to make depend.m4 easier to write. Note that we *cannot* use a case 76# here, because this file can only contain one case statement. 77if test "$depmode" = hp; then 78 # HP compiler uses -M and no extra arg. 79 gccflag=-M 80 depmode=gcc 81fi 82 83if test "$depmode" = dashXmstdout; then 84 # This is just like dashmstdout with a different argument. 85 dashmflag=-xM 86 depmode=dashmstdout 87fi 88 89case "$depmode" in 90gcc3) 91## gcc 3 implements dependency tracking that does exactly what 92## we want. Yay! Note: for some reason libtool 1.4 doesn't like 93## it if -MD -MP comes after the -MF stuff. Hmm. 94 "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" 95 stat=$? 96 if test $stat -eq 0; then : 97 else 98 rm -f "$tmpdepfile" 99 exit $stat 100 fi 101 mv "$tmpdepfile" "$depfile" 102 ;; 103 104gcc) 105## There are various ways to get dependency output from gcc. Here's 106## why we pick this rather obscure method: 107## - Don't want to use -MD because we'd like the dependencies to end 108## up in a subdir. Having to rename by hand is ugly. 109## (We might end up doing this anyway to support other compilers.) 110## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like 111## -MM, not -M (despite what the docs say). 112## - Using -M directly means running the compiler twice (even worse 113## than renaming). 114 if test -z "$gccflag"; then 115 gccflag=-MD, 116 fi 117 "$@" -Wp,"$gccflag$tmpdepfile" 118 stat=$? 119 if test $stat -eq 0; then : 120 else 121 rm -f "$tmpdepfile" 122 exit $stat 123 fi 124 rm -f "$depfile" 125 echo "$object : \\" > "$depfile" 126 alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz 127## The second -e expression handles DOS-style file names with drive letters. 128 sed -e 's/^[^:]*: / /' \ 129 -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" 130## This next piece of magic avoids the `deleted header file' problem. 131## The problem is that when a header file which appears in a .P file 132## is deleted, the dependency causes make to die (because there is 133## typically no way to rebuild the header). We avoid this by adding 134## dummy dependencies for each header file. Too bad gcc doesn't do 135## this for us directly. 136 tr ' ' ' 137' < "$tmpdepfile" | 138## Some versions of gcc put a space before the `:'. On the theory 139## that the space means something, we add a space to the output as 140## well. 141## Some versions of the HPUX 10.20 sed can't process this invocation 142## correctly. Breaking it into two sed invocations is a workaround. 143 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" 144 rm -f "$tmpdepfile" 145 ;; 146 147hp) 148 # This case exists only to let depend.m4 do its work. It works by 149 # looking at the text of this script. This case will never be run, 150 # since it is checked for above. 151 exit 1 152 ;; 153 154sgi) 155 if test "$libtool" = yes; then 156 "$@" "-Wp,-MDupdate,$tmpdepfile" 157 else 158 "$@" -MDupdate "$tmpdepfile" 159 fi 160 stat=$? 161 if test $stat -eq 0; then : 162 else 163 rm -f "$tmpdepfile" 164 exit $stat 165 fi 166 rm -f "$depfile" 167 168 if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files 169 echo "$object : \\" > "$depfile" 170 171 # Clip off the initial element (the dependent). Don't try to be 172 # clever and replace this with sed code, as IRIX sed won't handle 173 # lines with more than a fixed number of characters (4096 in 174 # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; 175 # the IRIX cc adds comments like `#:fec' to the end of the 176 # dependency line. 177 tr ' ' ' 178' < "$tmpdepfile" \ 179 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \ 180 tr ' 181' ' ' >> $depfile 182 echo >> $depfile 183 184 # The second pass generates a dummy entry for each header file. 185 tr ' ' ' 186' < "$tmpdepfile" \ 187 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ 188 >> $depfile 189 else 190 # The sourcefile does not contain any dependencies, so just 191 # store a dummy comment line, to avoid errors with the Makefile 192 # "include basename.Plo" scheme. 193 echo "#dummy" > "$depfile" 194 fi 195 rm -f "$tmpdepfile" 196 ;; 197 198aix) 199 # The C for AIX Compiler uses -M and outputs the dependencies 200 # in a .u file. In older versions, this file always lives in the 201 # current directory. Also, the AIX compiler puts `$object:' at the 202 # start of each line; $object doesn't have directory information. 203 # Version 6 uses the directory in both cases. 204 stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'` 205 tmpdepfile="$stripped.u" 206 if test "$libtool" = yes; then 207 "$@" -Wc,-M 208 else 209 "$@" -M 210 fi 211 stat=$? 212 213 if test -f "$tmpdepfile"; then : 214 else 215 stripped=`echo "$stripped" | sed 's,^.*/,,'` 216 tmpdepfile="$stripped.u" 217 fi 218 219 if test $stat -eq 0; then : 220 else 221 rm -f "$tmpdepfile" 222 exit $stat 223 fi 224 225 if test -f "$tmpdepfile"; then 226 outname="$stripped.o" 227 # Each line is of the form `foo.o: dependent.h'. 228 # Do two passes, one to just change these to 229 # `$object: dependent.h' and one to simply `dependent.h:'. 230 sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile" 231 sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile" 232 else 233 # The sourcefile does not contain any dependencies, so just 234 # store a dummy comment line, to avoid errors with the Makefile 235 # "include basename.Plo" scheme. 236 echo "#dummy" > "$depfile" 237 fi 238 rm -f "$tmpdepfile" 239 ;; 240 241icc) 242 # Intel's C compiler understands `-MD -MF file'. However on 243 # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c 244 # ICC 7.0 will fill foo.d with something like 245 # foo.o: sub/foo.c 246 # foo.o: sub/foo.h 247 # which is wrong. We want: 248 # sub/foo.o: sub/foo.c 249 # sub/foo.o: sub/foo.h 250 # sub/foo.c: 251 # sub/foo.h: 252 # ICC 7.1 will output 253 # foo.o: sub/foo.c sub/foo.h 254 # and will wrap long lines using \ : 255 # foo.o: sub/foo.c ... \ 256 # sub/foo.h ... \ 257 # ... 258 259 "$@" -MD -MF "$tmpdepfile" 260 stat=$? 261 if test $stat -eq 0; then : 262 else 263 rm -f "$tmpdepfile" 264 exit $stat 265 fi 266 rm -f "$depfile" 267 # Each line is of the form `foo.o: dependent.h', 268 # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. 269 # Do two passes, one to just change these to 270 # `$object: dependent.h' and one to simply `dependent.h:'. 271 sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" 272 # Some versions of the HPUX 10.20 sed can't process this invocation 273 # correctly. Breaking it into two sed invocations is a workaround. 274 sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" | 275 sed -e 's/$/ :/' >> "$depfile" 276 rm -f "$tmpdepfile" 277 ;; 278 279tru64) 280 # The Tru64 compiler uses -MD to generate dependencies as a side 281 # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'. 282 # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put 283 # dependencies in `foo.d' instead, so we check for that too. 284 # Subdirectories are respected. 285 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'` 286 test "x$dir" = "x$object" && dir= 287 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'` 288 289 if test "$libtool" = yes; then 290 # With Tru64 cc, shared objects can also be used to make a 291 # static library. This mecanism is used in libtool 1.4 series to 292 # handle both shared and static libraries in a single compilation. 293 # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d. 294 # 295 # With libtool 1.5 this exception was removed, and libtool now 296 # generates 2 separate objects for the 2 libraries. These two 297 # compilations output dependencies in in $dir.libs/$base.o.d and 298 # in $dir$base.o.d. We have to check for both files, because 299 # one of the two compilations can be disabled. We should prefer 300 # $dir$base.o.d over $dir.libs/$base.o.d because the latter is 301 # automatically cleaned when .libs/ is deleted, while ignoring 302 # the former would cause a distcleancheck panic. 303 tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4 304 tmpdepfile2=$dir$base.o.d # libtool 1.5 305 tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5 306 tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504 307 "$@" -Wc,-MD 308 else 309 tmpdepfile1=$dir$base.o.d 310 tmpdepfile2=$dir$base.d 311 tmpdepfile3=$dir$base.d 312 tmpdepfile4=$dir$base.d 313 "$@" -MD 314 fi 315 316 stat=$? 317 if test $stat -eq 0; then : 318 else 319 rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4" 320 exit $stat 321 fi 322 323 for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4" 324 do 325 test -f "$tmpdepfile" && break 326 done 327 if test -f "$tmpdepfile"; then 328 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile" 329 # That's a tab and a space in the []. 330 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile" 331 else 332 echo "#dummy" > "$depfile" 333 fi 334 rm -f "$tmpdepfile" 335 ;; 336 337#nosideeffect) 338 # This comment above is used by automake to tell side-effect 339 # dependency tracking mechanisms from slower ones. 340 341dashmstdout) 342 # Important note: in order to support this mode, a compiler *must* 343 # always write the preprocessed file to stdout, regardless of -o. 344 "$@" || exit $? 345 346 # Remove the call to Libtool. 347 if test "$libtool" = yes; then 348 while test $1 != '--mode=compile'; do 349 shift 350 done 351 shift 352 fi 353 354 # Remove `-o $object'. 355 IFS=" " 356 for arg 357 do 358 case $arg in 359 -o) 360 shift 361 ;; 362 $object) 363 shift 364 ;; 365 *) 366 set fnord "$@" "$arg" 367 shift # fnord 368 shift # $arg 369 ;; 370 esac 371 done 372 373 test -z "$dashmflag" && dashmflag=-M 374 # Require at least two characters before searching for `:' 375 # in the target name. This is to cope with DOS-style filenames: 376 # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise. 377 "$@" $dashmflag | 378 sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile" 379 rm -f "$depfile" 380 cat < "$tmpdepfile" > "$depfile" 381 tr ' ' ' 382' < "$tmpdepfile" | \ 383## Some versions of the HPUX 10.20 sed can't process this invocation 384## correctly. Breaking it into two sed invocations is a workaround. 385 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" 386 rm -f "$tmpdepfile" 387 ;; 388 389dashXmstdout) 390 # This case only exists to satisfy depend.m4. It is never actually 391 # run, as this mode is specially recognized in the preamble. 392 exit 1 393 ;; 394 395makedepend) 396 "$@" || exit $? 397 # Remove any Libtool call 398 if test "$libtool" = yes; then 399 while test $1 != '--mode=compile'; do 400 shift 401 done 402 shift 403 fi 404 # X makedepend 405 shift 406 cleared=no 407 for arg in "$@"; do 408 case $cleared in 409 no) 410 set ""; shift 411 cleared=yes ;; 412 esac 413 case "$arg" in 414 -D*|-I*) 415 set fnord "$@" "$arg"; shift ;; 416 # Strip any option that makedepend may not understand. Remove 417 # the object too, otherwise makedepend will parse it as a source file. 418 -*|$object) 419 ;; 420 *) 421 set fnord "$@" "$arg"; shift ;; 422 esac 423 done 424 obj_suffix="`echo $object | sed 's/^.*\././'`" 425 touch "$tmpdepfile" 426 ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@" 427 rm -f "$depfile" 428 cat < "$tmpdepfile" > "$depfile" 429 sed '1,2d' "$tmpdepfile" | tr ' ' ' 430' | \ 431## Some versions of the HPUX 10.20 sed can't process this invocation 432## correctly. Breaking it into two sed invocations is a workaround. 433 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" 434 rm -f "$tmpdepfile" "$tmpdepfile".bak 435 ;; 436 437cpp) 438 # Important note: in order to support this mode, a compiler *must* 439 # always write the preprocessed file to stdout. 440 "$@" || exit $? 441 442 # Remove the call to Libtool. 443 if test "$libtool" = yes; then 444 while test $1 != '--mode=compile'; do 445 shift 446 done 447 shift 448 fi 449 450 # Remove `-o $object'. 451 IFS=" " 452 for arg 453 do 454 case $arg in 455 -o) 456 shift 457 ;; 458 $object) 459 shift 460 ;; 461 *) 462 set fnord "$@" "$arg" 463 shift # fnord 464 shift # $arg 465 ;; 466 esac 467 done 468 469 "$@" -E | 470 sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ 471 -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' | 472 sed '$ s: \\$::' > "$tmpdepfile" 473 rm -f "$depfile" 474 echo "$object : \\" > "$depfile" 475 cat < "$tmpdepfile" >> "$depfile" 476 sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" 477 rm -f "$tmpdepfile" 478 ;; 479 480msvisualcpp) 481 # Important note: in order to support this mode, a compiler *must* 482 # always write the preprocessed file to stdout, regardless of -o, 483 # because we must use -o when running libtool. 484 "$@" || exit $? 485 IFS=" " 486 for arg 487 do 488 case "$arg" in 489 "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") 490 set fnord "$@" 491 shift 492 shift 493 ;; 494 *) 495 set fnord "$@" "$arg" 496 shift 497 shift 498 ;; 499 esac 500 done 501 "$@" -E | 502 sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile" 503 rm -f "$depfile" 504 echo "$object : \\" > "$depfile" 505 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile" 506 echo " " >> "$depfile" 507 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile" 508 rm -f "$tmpdepfile" 509 ;; 510 511none) 512 exec "$@" 513 ;; 514 515*) 516 echo "Unknown depmode $depmode" 1>&2 517 exit 1 518 ;; 519esac 520 521exit 0 522 523# Local Variables: 524# mode: shell-script 525# sh-indentation: 2 526# eval: (add-hook 'write-file-hooks 'time-stamp) 527# time-stamp-start: "scriptversion=" 528# time-stamp-format: "%:y-%02m-%02d.%02H" 529# time-stamp-end: "$" 530# End: 531